Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/5533?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/5533?format=api", "vulnerability_id": "VCID-z965-xgv5-fqet", "summary": "Versions 1.17 and 1.18 of the Python urllib3 library suffer from a vulnerability that can cause them, in certain configurations, to not correctly validate TLS certificates. This places users of the library with those configurations at risk of man-in-the-middle and information leakage attacks. This vulnerability affects users using versions 1.17 and 1.18 of the urllib3 library, who are using the optional PyOpenSSL support for TLS instead of the regular standard library TLS backend, and who are using OpenSSL 1.1.0 via PyOpenSSL. This is an extremely uncommon configuration, so the security impact of this vulnerability is low.", "aliases": [ { "alias": "CVE-2016-9015" }, { "alias": "GHSA-v4w5-p2hg-8fh6" }, { "alias": "PYSEC-2017-98" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/936869?format=api", "purl": "pkg:deb/debian/python-urllib3@0?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/python-urllib3@0%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/936866?format=api", "purl": "pkg:deb/debian/python-urllib3@1.26.5-1~exp1?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-zevs-1ge5-y7g7" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/python-urllib3@1.26.5-1~exp1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/936864?format=api", "purl": "pkg:deb/debian/python-urllib3@1.26.12-1%2Bdeb12u1?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-zevs-1ge5-y7g7" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/python-urllib3@1.26.12-1%252Bdeb12u1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/936868?format=api", "purl": "pkg:deb/debian/python-urllib3@2.3.0-3%2Bdeb13u1?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-zevs-1ge5-y7g7" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/python-urllib3@2.3.0-3%252Bdeb13u1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/936867?format=api", "purl": "pkg:deb/debian/python-urllib3@2.6.3-2?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/python-urllib3@2.6.3-2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/4554?format=api", "purl": "pkg:pypi/urllib3@1.18.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-4evk-srqq-fuef" }, { "vulnerability": "VCID-5tkp-pxz9-h7c2" }, { "vulnerability": "VCID-692s-9j5p-gbf1" }, { "vulnerability": "VCID-6kxp-qa5x-q3bq" }, { "vulnerability": "VCID-7wcj-zvjq-xud3" }, { "vulnerability": "VCID-8par-whwz-6kft" }, { "vulnerability": "VCID-969r-9mvk-uyh4" }, { "vulnerability": "VCID-b3e6-k53t-bkgk" }, { "vulnerability": "VCID-gxkt-bvtg-gbaj" }, { "vulnerability": "VCID-squd-j9t3-9khh" }, { "vulnerability": "VCID-swgb-7b34-h3a9" }, { "vulnerability": "VCID-x61z-9ntw-x3dh" }, { "vulnerability": "VCID-zevs-1ge5-y7g7" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/urllib3@1.18.1" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/4552?format=api", "purl": "pkg:pypi/urllib3@1.17", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-4evk-srqq-fuef" }, { "vulnerability": "VCID-5tkp-pxz9-h7c2" }, { "vulnerability": "VCID-692s-9j5p-gbf1" }, { "vulnerability": "VCID-6kxp-qa5x-q3bq" }, { "vulnerability": "VCID-7wcj-zvjq-xud3" }, { "vulnerability": "VCID-8par-whwz-6kft" }, { "vulnerability": "VCID-969r-9mvk-uyh4" }, { "vulnerability": "VCID-b3e6-k53t-bkgk" }, { "vulnerability": "VCID-gxkt-bvtg-gbaj" }, { "vulnerability": "VCID-squd-j9t3-9khh" }, { "vulnerability": "VCID-swgb-7b34-h3a9" }, { "vulnerability": "VCID-x61z-9ntw-x3dh" }, { "vulnerability": "VCID-z965-xgv5-fqet" }, { "vulnerability": "VCID-zevs-1ge5-y7g7" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/urllib3@1.17" }, { "url": "http://public2.vulnerablecode.io/api/packages/4553?format=api", "purl": "pkg:pypi/urllib3@1.18", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-4evk-srqq-fuef" }, { "vulnerability": "VCID-5tkp-pxz9-h7c2" }, { "vulnerability": "VCID-692s-9j5p-gbf1" }, { "vulnerability": "VCID-6kxp-qa5x-q3bq" }, { "vulnerability": "VCID-7wcj-zvjq-xud3" }, { "vulnerability": "VCID-8par-whwz-6kft" }, { "vulnerability": "VCID-969r-9mvk-uyh4" }, { "vulnerability": "VCID-b3e6-k53t-bkgk" }, { "vulnerability": "VCID-gxkt-bvtg-gbaj" }, { "vulnerability": "VCID-squd-j9t3-9khh" }, { "vulnerability": "VCID-swgb-7b34-h3a9" }, { "vulnerability": "VCID-x61z-9ntw-x3dh" }, { "vulnerability": "VCID-z965-xgv5-fqet" }, { "vulnerability": "VCID-zevs-1ge5-y7g7" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/urllib3@1.18" } ], "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2016-9015", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00058", "scoring_system": "epss", "scoring_elements": "0.18099", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.00058", "scoring_system": "epss", "scoring_elements": "0.18086", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.00058", "scoring_system": "epss", "scoring_elements": "0.18142", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.00058", "scoring_system": "epss", "scoring_elements": "0.18193", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.00058", "scoring_system": "epss", "scoring_elements": "0.1824", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.00058", "scoring_system": "epss", "scoring_elements": "0.18237", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.00058", "scoring_system": "epss", "scoring_elements": "0.18184", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.00058", "scoring_system": "epss", "scoring_elements": "0.1819", "published_at": "2026-04-01T12:55:00Z" }, { "value": "0.00058", "scoring_system": "epss", "scoring_elements": "0.18345", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.00058", "scoring_system": "epss", "scoring_elements": "0.18399", "published_at": "2026-04-04T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2016-9015" }, { "reference_url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "2.6", "scoring_system": "cvssv2", "scoring_elements": "AV:N/AC:H/Au:N/C:P/I:N/A:N" }, { "value": "3.7", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N" } ], "url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/urllib3/PYSEC-2017-98.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "3.7", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N" }, { "value": "6.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/urllib3/PYSEC-2017-98.yaml" }, { "reference_url": "https://github.com/urllib3/urllib3", "reference_id": "", "reference_type": "", "scores": [ { "value": "3.7", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N" }, { "value": "6.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/urllib3/urllib3" }, { "reference_url": "https://github.com/urllib3/urllib3/commit/c32cdbc16a9634fa0f8c829d1270301570158715", "reference_id": "", "reference_type": "", "scores": [ { "value": "3.7", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N" }, { "value": "6.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/urllib3/urllib3/commit/c32cdbc16a9634fa0f8c829d1270301570158715" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2016-9015", "reference_id": "", "reference_type": "", "scores": [ { "value": "3.7", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N" }, { "value": "6.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-9015" }, { "reference_url": "https://web.archive.org/web/20210123184150/http://www.securityfocus.com/bid/93941", "reference_id": "", "reference_type": "", "scores": [ { "value": "3.7", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N" }, { "value": "6.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://web.archive.org/web/20210123184150/http://www.securityfocus.com/bid/93941" }, { "reference_url": "http://www.openwall.com/lists/oss-security/2016/10/27/6", "reference_id": "", "reference_type": "", "scores": [ { "value": "3.7", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N" }, { "value": "6.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "http://www.openwall.com/lists/oss-security/2016/10/27/6" }, { "reference_url": "http://www.securityfocus.com/bid/93941", "reference_id": "", "reference_type": "", "scores": [], "url": "http://www.securityfocus.com/bid/93941" }, { "reference_url": "https://github.com/advisories/GHSA-v4w5-p2hg-8fh6", "reference_id": "GHSA-v4w5-p2hg-8fh6", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-v4w5-p2hg-8fh6" } ], "weaknesses": [ { "cwe_id": 295, "name": "Improper Certificate Validation", "description": "The product does not validate, or incorrectly validates, a certificate." }, { "cwe_id": 937, "name": "OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities", "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2013." }, { "cwe_id": 1035, "name": "OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities", "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2017." } ], "exploits": [], "severity_range_score": "2.6 - 6.9", "exploitability": "0.5", "weighted_severity": "6.2", "risk_score": 3.1, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-z965-xgv5-fqet" }